Matches 1 - 17 out of 17
Match Document Document Title
7343958 Overhead door lift system  
A garage door cable drum is disclosed for a sectional overhead door of a type having a substantially non-linear lift-weight to lift-height characteristic. The drum includes a generally spiral cable...
D556420 Portable winch  
D532577 Winch  
D491333 Wire rope traction hoist  
D489157 Mid-range vehicle winch  
D479899 Power winch  
D475499 Winch  
D473992 Utility winch  
D471338 Power winch  
4003552 Counterpoising load support apparatus and method  
In a device for counterpoising a range of cable supported loads, the inner end of a torsion spring is fastened to a shaft. A cam having an axially extending spiral cable groove of continuously...
3062479 Means for facilitating replacement of springs in spring rewound tagline devices  
3054573 Tape measure apparatus  
3032291 Retractable electric power cord mechanism  
2985309 Counterbalance centrifugal separator  
2958509 Power balancer  
2939680 Balancer lowering assist  
2924429 Servo-motor hoisting and handling apparatus  
Matches 1 - 17 out of 17